西門子NCU模塊上電指示燈一直閃；公司從事SINUMERIK數控機床、工控設(she)備(bei)、自動(dong)化設(she)備(bei)、機電設(she)備(bei)、電路板、PLC等(deng)硬(ying)件故障(zhang)維(wei)(wei)修及檢測(ce)專(zhuan)家，公司擁有技(ji)術(shu)團隊，維(wei)(wei)修級(ji)工程師已超過十年(nian)硬(ying)件維(wei)(wei)修技(ji)術(shu)，配(pei)有高的檢測(ce)設(she)備(bei)，自主搭(da)建了840D、840DSL、828D、840C、802D、802DSL、840C,810D,等(deng)數控系統模擬測(ce)試平臺，可以快速可靠的檢測(ce)設(she)備(bei)故障(zhang)點位，維(wei)(wei)修準，上機測(ce)試正(zheng)常后提(ti)供給(gei)客(ke)戶，使設(she)備(bei)能達到現場正(zheng)常使用。為(wei)用戶節約時間成本、提(ti)高生產效率！

西門子NCU模塊上電指示燈一直閃；西門子(zi)840D NCU出(chu)現的故障為上(shang)電之(zhi)后數(shu)碼(ma)管(guan)無顯(xian)示，數(shu)碼(ma)管(guan)顯(xian)示“1”,數(shu)碼(ma)管(guan)顯(xian)示“3”，數(shu)碼(ma)管(guan)顯(xian)示“8”，數(shu)碼(ma)管(guan)走“106”和“109”等。如果(guo)NCU出(chu)現上(shang)述報警均屬(shu)于NCU有故障，需要專業人士進行修(xiu)理(li)，NCU正(zheng)常狀(zhuang)態為數(shu)碼(ma)管(guan)顯(xian)示“6”和兩個綠燈亮(liang)才屬(shu)正(zheng)常。

西(xi)門子數(shu)控(kong)(kong)系(xi)統(tong)可(ke)(ke)以持續穩(wen)定運(yun)(yun)行(xing)的重要原因即是上述(shu)兩(liang)大(da)系(xi)統(tong)之間的密切(qie)配合,其中(zhong)(zhong)任何一個系(xi)統(tong)發(fa)生故障(zhang)都可(ke)(ke)能對(dui)(dui)設備運(yun)(yun)行(xing)造(zao)成(cheng)影響。西(xi)門子系(xi)統(tong)實(shi)(shi)際運(yun)(yun)行(xing)過程中(zhong)(zhong)具有非常(chang)明顯(xian)的特征與(yu)優勢,一般表現(xian)為穩(wen)定性強、故障(zhang)發(fa)生率(lv)較低、系(xi)統(tong)使用壽命相對(dui)(dui)更長。由于(yu)很多(duo)客(ke)觀或主(zhu)(zhu)觀因素的影響,數(shu)控(kong)(kong)系(xi)統(tong)在(zai)實(shi)(shi)際運(yun)(yun)行(xing)中(zhong)(zhong)會出現(xian)一些故障(zhang)。2西(xi)門子840D數(shu)控(kong)(kong)系(xi)統(tong)的故障(zhang)診斷與(yu)維修(xiu)(1)DMG5軸(zhou)(zhou)立臥兩(liang)用5軸(zhou)(zhou)加工中(zhong)(zhong)心DMC125U,西(xi)門子系(xi)統(tong),611D數(shu)字(zi)伺服驅動(dong)(dong)。主(zhu)(zhu)軸(zhou)(zhou)啟動(dong)(dong)至3000 r/min時設備處(chu)于(yu)正(zheng)常(chang)運(yun)(yun)行(xing)狀態,但>3000 r/min轉剎車時,611D電(dian)(dian)源(yuan)單元(yuan)錯(cuo)誤,報警過電(dian)(dian)壓,機(ji)床停止(zhi)工作。分析故障(zhang)現(xian)象,主(zhu)(zhu)軸(zhou)(zhou)旋轉過程中(zhong)(zhong)沒有異聲,手動(dong)(dong)轉動(dong)(dong)也無異樣(yang),可(ke)(ke)排除主(zhu)(zhu)軸(zhou)(zhou)機(ji)械故障(zhang)。拆(chai)卸(xie)主(zhu)(zhu)軸(zhou)(zhou)端動(dong)(dong)力線(xian)纜,用兆歐表測量檢查(cha)(cha)線(xian)路和主(zhu)(zhu)軸(zhou)(zhou)電(dian)(dian)機(ji)絕緣狀況,無異常(chang);拆(chai)卸(xie)檢查(cha)(cha)主(zhu)(zhu)軸(zhou)(zhou)驅動(dong)(dong)器(qi)和電(dian)(dian)源(yuan)模塊,電(dian)(dian)路板和元(yuan)件(jian)沒有明顯(xian)損(sun)壞痕跡,交換主(zhu)(zhu)軸(zhou)(zhou)驅動(dong)(dong)器(qi)后(hou)故障(zhang)依(yi)舊(jiu)存在(zai);對(dui)(dui)611D電(dian)(dian)源(yuan)單元(yuan)進(jin)行(xing)交換后(hou)發(fa)現(xian)故障(zhang)轉移,將損(sun)壞電(dian)(dian)源(yuan)單元(yuan)修(xiu)復(fu)后(hou)機(ji)床恢復(fu)正(zheng)常(chang)工作。